Alphys is the caretaker of the ruins. She helps you through the tutorial of the game.
Alphys is a kind monster who acts motherly to any human to fall into the Underground. She employs tough love onto Cameron as well as Undyne. She is also sometimes playful and loves bad jokes and puns, and even keeps a journal of puns. Her dream is to become a teacher, which is fulfilled in the True Pacifist route.
She has a pointed head and buck teeth, and her skin is yellow. She has red eyes.
She wears a purple robe with the Delta Rune on it, and wears glasses when reading. She wears a purple cardigan over a white tank top and a purple skirt in the True Pacifist epilogue, as well as her glasses. She is never seen with shoes.